A 39-year-old man was arrested Wednesday on charges that he robbed one Raleigh sweepstakes parlor with a 17-year-old female accomplice and three others with a 22-year-old woman.

It was the fourth arrest in the investigation.

According to a series of arrest warrants that named Khalid Usama Abdallah, 39, police believe he was half of an armed-robbery team that held up the Hot Spot sweepstakes on Sept. 30. Abdallah is listed as living in Durham, although he gave a Raleigh address in previous arrests.

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Police arrested 17-year-old Frida Segura-Perez of Raleigh on Nov. 16 on charges of holding up Hot Spot for $1,995 as part of a two-gun pair. She was charged with conspiring with someone whose name was not given in her arrest warrant.

Abdallah was also charged with armed robbery, attempted armed robbery and conspiracy in connection with holdups at Win City sweepstakes about midnight on Oct. 20, Skill Masters sweepstakes on Oct. 22 and a parlor known as H&L Enterprises on Oct. 23.

Sydney Andrea Crandon, 22, of Raleigh was arrested late last month in the three October holdups. She, too, was charged with armed robbery, attempted robbery and conspiracy.

A wealthy Russian man who has been the focus of media attention since the FBI raided his mansion earlier this month used a downtown Raleigh condominium as a “safe house” for guns, ammunition and cash, according to federal court testimony.